Chapitre 440: Choose Your Crown.

His body suffered and broke apart little by little. Then there was a time during the trial that he crushed the skull of an enemy beneath his foot. His skull shattered in the real world and the light of his soul flame within his skull went out. 

The next thing that took a hit is his flames of Chaos Accumulation. The reddish flame on top of his head activated on its own burning his reservoir of Accumulation to maintain the connection to his soul and keep him alive. He will surely die when the flame goes out.